/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 03:35:59,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 03:35:59,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 03:35:59,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 03:35:59,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 03:35:59,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 03:35:59,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 03:35:59,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 03:35:59,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 03:35:59,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 03:35:59,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 03:35:59,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 03:35:59,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 03:35:59,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 03:35:59,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 03:35:59,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 03:35:59,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 03:35:59,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 03:35:59,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 03:35:59,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 03:35:59,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 03:35:59,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 03:35:59,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 03:35:59,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 03:35:59,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 03:35:59,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 03:35:59,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 03:35:59,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 03:35:59,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 03:35:59,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 03:35:59,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 03:35:59,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 03:35:59,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 03:35:59,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 03:35:59,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 03:35:59,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 03:35:59,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 03:35:59,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 03:35:59,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 03:35:59,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 03:35:59,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 03:35:59,702 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 03:35:59,755 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 03:35:59,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 03:35:59,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 03:35:59,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 03:35:59,760 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 03:35:59,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 03:35:59,760 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 03:35:59,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 03:35:59,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 03:35:59,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 03:35:59,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 03:35:59,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 03:35:59,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 03:35:59,762 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 03:35:59,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 03:35:59,763 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 03:35:59,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 03:35:59,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 03:35:59,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 03:35:59,764 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 03:35:59,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 03:35:59,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:35:59,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 03:35:59,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 03:35:59,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 03:35:59,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 03:35:59,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 03:35:59,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 03:35:59,766 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 03:35:59,766 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 03:36:00,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 03:36:00,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 03:36:00,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 03:36:00,276 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 03:36:00,277 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 03:36:00,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-27 03:36:00,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28ca84a5a/dc207f94677441509b2f8ff3cfcc66ac/FLAG3a7951b12 [2020-10-27 03:36:01,082 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 03:36:01,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-27 03:36:01,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28ca84a5a/dc207f94677441509b2f8ff3cfcc66ac/FLAG3a7951b12 [2020-10-27 03:36:01,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28ca84a5a/dc207f94677441509b2f8ff3cfcc66ac [2020-10-27 03:36:01,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 03:36:01,417 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 03:36:01,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 03:36:01,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 03:36:01,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 03:36:01,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:36:01" (1/1) ... [2020-10-27 03:36:01,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23de09a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:01, skipping insertion in model container [2020-10-27 03:36:01,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:36:01" (1/1) ... [2020-10-27 03:36:01,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 03:36:01,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 03:36:01,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:36:01,891 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 03:36:01,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 03:36:02,055 INFO L208 MainTranslator]: Completed translation [2020-10-27 03:36:02,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:02 WrapperNode [2020-10-27 03:36:02,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 03:36:02,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 03:36:02,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 03:36:02,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 03:36:02,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:02" (1/1) ... [2020-10-27 03:36:02,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:02" (1/1) ... [2020-10-27 03:36:02,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:02" (1/1) ... [2020-10-27 03:36:02,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:02" (1/1) ... [2020-10-27 03:36:02,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:02" (1/1) ... [2020-10-27 03:36:02,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:02" (1/1) ... [2020-10-27 03:36:02,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:02" (1/1) ... [2020-10-27 03:36:02,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 03:36:02,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 03:36:02,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 03:36:02,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 03:36:02,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 03:36:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 03:36:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 03:36:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 03:36:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 03:36:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 03:36:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 03:36:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-27 03:36:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-27 03:36:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-27 03:36:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-27 03:36:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-27 03:36:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-27 03:36:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-27 03:36:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-27 03:36:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-27 03:36:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:36:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 03:36:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 03:36:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 03:36:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 03:36:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 03:36:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-27 03:36:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-27 03:36:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-27 03:36:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-27 03:36:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-27 03:36:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-27 03:36:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-27 03:36:02,277 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 03:36:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 03:36:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 03:36:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 03:36:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 03:36:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 03:36:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 03:36:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 03:36:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 03:36:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 03:36:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 03:36:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 03:36:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 03:36:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 03:36:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 03:36:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 03:36:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 03:36:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-27 03:36:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-27 03:36:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-27 03:36:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 03:36:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 03:36:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 03:36:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-27 03:36:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-27 03:36:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-27 03:36:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-27 03:36:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-27 03:36:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-27 03:36:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-27 03:36:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-27 03:36:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 03:36:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-27 03:36:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-27 03:36:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-27 03:36:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-27 03:36:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 03:36:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-27 03:36:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 03:36:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 03:36:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 03:36:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 03:36:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 03:36:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 03:36:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 03:36:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 03:36:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 03:36:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 03:36:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 03:36:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 03:36:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 03:36:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 03:36:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 03:36:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 03:36:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 03:36:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 03:36:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 03:36:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 03:36:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 03:36:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 03:36:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 03:36:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 03:36:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 03:36:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 03:36:03,512 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 03:36:03,513 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-27 03:36:03,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:36:03 BoogieIcfgContainer [2020-10-27 03:36:03,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 03:36:03,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 03:36:03,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 03:36:03,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 03:36:03,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:36:01" (1/3) ... [2020-10-27 03:36:03,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb19876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:36:03, skipping insertion in model container [2020-10-27 03:36:03,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:36:02" (2/3) ... [2020-10-27 03:36:03,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb19876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:36:03, skipping insertion in model container [2020-10-27 03:36:03,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:36:03" (3/3) ... [2020-10-27 03:36:03,528 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-10-27 03:36:03,541 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 03:36:03,548 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 03:36:03,563 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 03:36:03,608 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 03:36:03,609 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 03:36:03,609 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 03:36:03,609 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 03:36:03,609 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 03:36:03,610 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 03:36:03,610 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 03:36:03,611 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 03:36:03,643 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2020-10-27 03:36:03,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-27 03:36:03,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:03,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:36:03,663 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:36:03,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:03,675 INFO L82 PathProgramCache]: Analyzing trace with hash 816903093, now seen corresponding path program 1 times [2020-10-27 03:36:03,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:03,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001372508] [2020-10-27 03:36:03,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:04,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:04,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:05,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:07,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:07,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-27 03:36:07,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 03:36:07,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3382 [2020-10-27 03:36:07,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:07,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 03:36:07,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:07,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 03:36:07,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 03:36:07,984 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:07,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:08,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:08,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:08,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:08,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:08,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-10-27 03:36:08,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:08,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:08,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:08,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:08,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:08,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:08,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:08,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:08,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:08,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:08,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:08,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:08,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:08,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:08,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:08,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:08,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:08,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:08,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:08,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:08,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:08,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:08,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:08,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:08,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:08,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:08,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:08,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:08,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:08,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:08,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:36:08,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:08,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:08,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:08,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:08,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:08,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:08,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:08,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:08,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:08,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:08,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 03:36:08,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:08,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:08,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:08,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:08,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-27 03:36:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:08,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:08,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:08,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:08,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:08,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:08,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:08,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:08,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:08,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:08,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 03:36:08,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-27 03:36:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:08,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:08,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:08,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:08,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:08,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:08,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:08,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:08,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:08,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:08,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:08,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 03:36:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:08,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:08,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:08,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:08,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:08,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:08,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:08,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:08,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:08,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:08,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:08,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:36:08,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001372508] [2020-10-27 03:36:08,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:08,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 03:36:08,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122175814] [2020-10-27 03:36:08,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 03:36:08,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:08,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 03:36:08,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 03:36:08,312 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 4 states. [2020-10-27 03:36:08,882 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:11,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:11,213 INFO L93 Difference]: Finished difference Result 412 states and 546 transitions. [2020-10-27 03:36:11,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 03:36:11,216 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-27 03:36:11,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:11,232 INFO L225 Difference]: With dead ends: 412 [2020-10-27 03:36:11,232 INFO L226 Difference]: Without dead ends: 266 [2020-10-27 03:36:11,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 03:36:11,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-27 03:36:11,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 205. [2020-10-27 03:36:11,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-27 03:36:11,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 244 transitions. [2020-10-27 03:36:11,391 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 244 transitions. Word has length 53 [2020-10-27 03:36:11,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:11,392 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 244 transitions. [2020-10-27 03:36:11,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 03:36:11,392 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 244 transitions. [2020-10-27 03:36:11,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-27 03:36:11,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:11,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:36:11,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 03:36:11,398 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:36:11,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:11,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1626854306, now seen corresponding path program 1 times [2020-10-27 03:36:11,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:11,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065986065] [2020-10-27 03:36:11,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:11,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:11,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:11,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:12,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:16,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:16,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-27 03:36:16,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 03:36:16,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-27 03:36:16,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:16,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 03:36:16,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:16,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 03:36:16,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:16,846 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:16,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:16,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:16,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:16,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:16,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:16,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-27 03:36:16,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:16,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:16,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:16,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:16,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:16,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:16,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:16,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:16,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:16,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:16,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:16,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:16,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:16,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 03:36:16,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:16,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:16,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:16,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:16,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:16,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:16,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:16,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:16,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:16,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:17,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 03:36:17,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:17,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:17,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:17,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:17,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:17,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:17,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:17,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:17,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 03:36:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 03:36:17,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 03:36:17,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:36:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 03:36:17,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 03:36:17,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 03:36:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:17,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 03:36:17,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:17,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:17,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 03:36:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:17,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:17,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:17,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:17,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:17,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-27 03:36:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:17,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:17,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:17,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:17,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:17,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 03:36:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:17,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:17,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:17,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:17,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:17,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:17,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:17,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:17,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:17,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:17,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:17,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:36:17,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065986065] [2020-10-27 03:36:17,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:17,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 03:36:17,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008236666] [2020-10-27 03:36:17,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 03:36:17,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:17,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 03:36:17,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 03:36:17,166 INFO L87 Difference]: Start difference. First operand 205 states and 244 transitions. Second operand 7 states. [2020-10-27 03:36:17,714 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:19,314 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:36:20,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:20,487 INFO L93 Difference]: Finished difference Result 670 states and 882 transitions. [2020-10-27 03:36:20,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 03:36:20,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2020-10-27 03:36:20,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:20,508 INFO L225 Difference]: With dead ends: 670 [2020-10-27 03:36:20,508 INFO L226 Difference]: Without dead ends: 489 [2020-10-27 03:36:20,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-27 03:36:20,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2020-10-27 03:36:20,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 396. [2020-10-27 03:36:20,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2020-10-27 03:36:20,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 481 transitions. [2020-10-27 03:36:20,694 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 481 transitions. Word has length 62 [2020-10-27 03:36:20,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:20,695 INFO L481 AbstractCegarLoop]: Abstraction has 396 states and 481 transitions. [2020-10-27 03:36:20,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 03:36:20,695 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 481 transitions. [2020-10-27 03:36:20,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-27 03:36:20,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:20,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:36:20,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 03:36:20,707 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:36:20,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:20,707 INFO L82 PathProgramCache]: Analyzing trace with hash 845648960, now seen corresponding path program 1 times [2020-10-27 03:36:20,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:20,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159817659] [2020-10-27 03:36:20,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:20,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:21,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:21,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 03:36:21,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:21,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 929 [2020-10-27 03:36:21,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:21,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 03:36:21,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:21,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-27 03:36:21,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:22,111 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-27 03:36:22,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 03:36:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:22,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:22,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:22,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:22,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:22,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-27 03:36:22,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:22,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:22,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:22,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 03:36:22,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:22,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 03:36:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:22,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:22,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:22,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:22,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:22,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:22,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:22,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:22,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 03:36:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:22,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:22,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:22,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:22,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:22,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:22,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:22,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:22,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:22,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:22,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:22,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 03:36:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:22,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:22,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:22,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:22,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:22,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:22,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:22,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:22,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:22,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 03:36:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:22,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:22,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:22,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 03:36:22,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:22,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:22,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:22,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 03:36:22,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:22,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-27 03:36:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:22,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:22,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:22,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 03:36:22,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:22,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:22,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:22,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:22,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:22,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 03:36:22,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:22,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-27 03:36:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:22,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:22,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:22,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:22,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:22,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 03:36:22,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:22,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 03:36:22,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:22,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:22,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:22,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 03:36:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:22,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:22,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:22,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:22,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:22,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 03:36:22,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:22,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 03:36:22,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 03:36:22,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 03:36:22,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:22,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 03:36:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 03:36:22,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 03:36:22,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 03:36:22,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 03:36:22,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 03:36:22,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 03:36:22,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 03:36:22,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 03:36:22,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 03:36:22,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 03:36:22,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 03:36:22,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 03:36:22,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159817659] [2020-10-27 03:36:22,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 03:36:22,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-27 03:36:22,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360950495] [2020-10-27 03:36:22,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 03:36:22,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 03:36:22,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 03:36:22,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 03:36:22,393 INFO L87 Difference]: Start difference. First operand 396 states and 481 transitions. Second operand 9 states. [2020-10-27 03:36:22,954 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:24,389 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-27 03:36:24,866 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:36:25,287 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-27 03:36:25,692 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-27 03:36:26,213 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-27 03:36:28,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 03:36:28,203 INFO L93 Difference]: Finished difference Result 1212 states and 1672 transitions. [2020-10-27 03:36:28,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 03:36:28,204 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2020-10-27 03:36:28,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 03:36:28,211 INFO L225 Difference]: With dead ends: 1212 [2020-10-27 03:36:28,212 INFO L226 Difference]: Without dead ends: 766 [2020-10-27 03:36:28,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-10-27 03:36:28,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2020-10-27 03:36:28,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 692. [2020-10-27 03:36:28,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-27 03:36:28,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 848 transitions. [2020-10-27 03:36:28,398 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 848 transitions. Word has length 64 [2020-10-27 03:36:28,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 03:36:28,398 INFO L481 AbstractCegarLoop]: Abstraction has 692 states and 848 transitions. [2020-10-27 03:36:28,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 03:36:28,398 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 848 transitions. [2020-10-27 03:36:28,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-27 03:36:28,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 03:36:28,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 03:36:28,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 03:36:28,401 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 03:36:28,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 03:36:28,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1167234182, now seen corresponding path program 1 times [2020-10-27 03:36:28,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 03:36:28,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [23730423] [2020-10-27 03:36:28,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 03:36:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 03:36:28,448 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 03:36:28,449 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 03:36:28,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 03:36:28,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:36:28 BoogieIcfgContainer [2020-10-27 03:36:28,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 03:36:28,479 INFO L168 Benchmark]: Toolchain (without parser) took 27066.63 ms. Allocated memory was 158.3 MB in the beginning and 442.5 MB in the end (delta: 284.2 MB). Free memory was 133.9 MB in the beginning and 342.0 MB in the end (delta: -208.1 MB). Peak memory consumption was 78.1 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:28,480 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory was 106.3 MB in the beginning and 106.2 MB in the end (delta: 71.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 03:36:28,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.18 ms. Allocated memory is still 158.3 MB. Free memory was 133.2 MB in the beginning and 140.3 MB in the end (delta: -7.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:28,482 INFO L168 Benchmark]: Boogie Preprocessor took 133.93 ms. Allocated memory is still 158.3 MB. Free memory was 140.3 MB in the beginning and 136.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:28,482 INFO L168 Benchmark]: RCFGBuilder took 1324.78 ms. Allocated memory is still 158.3 MB. Free memory was 136.3 MB in the beginning and 88.5 MB in the end (delta: 47.7 MB). Peak memory consumption was 50.1 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:28,483 INFO L168 Benchmark]: TraceAbstraction took 24956.33 ms. Allocated memory was 158.3 MB in the beginning and 442.5 MB in the end (delta: 284.2 MB). Free memory was 88.0 MB in the beginning and 342.0 MB in the end (delta: -253.9 MB). Peak memory consumption was 30.7 MB. Max. memory is 8.0 GB. [2020-10-27 03:36:28,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory was 106.3 MB in the beginning and 106.2 MB in the end (delta: 71.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 638.18 ms. Allocated memory is still 158.3 MB. Free memory was 133.2 MB in the beginning and 140.3 MB in the end (delta: -7.0 MB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 133.93 ms. Allocated memory is still 158.3 MB. Free memory was 140.3 MB in the beginning and 136.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1324.78 ms. Allocated memory is still 158.3 MB. Free memory was 136.3 MB in the beginning and 88.5 MB in the end (delta: 47.7 MB). Peak memory consumption was 50.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 24956.33 ms. Allocated memory was 158.3 MB in the beginning and 442.5 MB in the end (delta: 284.2 MB). Free memory was 88.0 MB in the beginning and 342.0 MB in the end (delta: -253.9 MB). Peak memory consumption was 30.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L326] int cleanupTimeShifts = 4; [L425] int waterLevel = 1; [L426] int methaneLevelCritical = 0; [L732] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L402] int retValue_acc ; [L403] int tmp ; [L407] FCALL select_helpers() [L408] FCALL select_features() [L409] CALL, EXPR valid_product() [L545] int retValue_acc ; [L548] retValue_acc = 1 [L549] return (retValue_acc); [L409] RET, EXPR valid_product() [L409] tmp = valid_product() [L411] COND TRUE \read(tmp) [L413] FCALL setup() [L414] CALL runTest() [L393] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L443] COND TRUE waterLevel < 2 [L444] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___1) [L95] CALL stopSystem() [L278] COND FALSE !(\read(pumpRunning)) [L285] systemActive = 0 [L95] RET stopSystem() [L102] CALL timeShift() [L130] COND FALSE !(\read(pumpRunning)) [L137] COND FALSE !(\read(systemActive)) [L145] CALL __utac_acc__Specification3_spec__1() [L293] int tmp ; [L294] int tmp___0 ; [L295] int tmp___1 ; [L299] CALL, EXPR isMethaneLevelCritical() [L464] int retValue_acc ; [L467] retValue_acc = methaneLevelCritical [L468] return (retValue_acc); [L299] RET, EXPR isMethaneLevelCritical() [L299] tmp = isMethaneLevelCritical() [L301] COND FALSE !(\read(tmp)) [L305] CALL, EXPR getWaterLevel() [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); [L305] RET, EXPR getWaterLevel() [L305] tmp___0 = getWaterLevel() [L307] COND TRUE tmp___0 == 2 [L309] CALL, EXPR isPumpRunning() [L211] int retValue_acc ; [L214] retValue_acc = pumpRunning [L215] return (retValue_acc); [L309] RET, EXPR isPumpRunning() [L309] tmp___1 = isPumpRunning() [L311] COND FALSE !(\read(tmp___1)) [L315] CALL __automaton_fail() [L558] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product35.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 236 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 12.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 397 SDtfs, 854 SDslu, 357 SDs, 0 SdLazy, 1679 SolverSat, 505 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=692occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 228 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 247 NumberOfCodeBlocks, 247 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 60178 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...